Switch with movable frog point
US8746630B2 · kind B2 · utility
0Cited by
5References
14Claims
0Family size
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Inventors
Key dates
| Filing date | Jan 12, 2009 |
| Grant date | Jun 10, 2014 |
| Priority date | — |
| Expiry date | Jun 28, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01B7/14
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In a switch including a switch frog (1) with a movable frog point (2) and wing rails (5, 6), wherein the wing rails (5, 6) in the region of the frog point (2) each have a rail profile which is lower than that of a standard rail, the wing rails (5, 6) are designed as Vignol rails whose region configured with a lower rail profile is produced by metal-forming departing from the Vignol rail profile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.